Installing packages in python installed using home-brew

Question

Hey everyone I installed Python3.9 on my Mac using homebrew package manager but now I do not know how to install packages to it for use

Can anyone please tell me, thanks !

Answer 1

You should first do some research on the Python virtual environment, but the final answer to your question is to use pip install for installing Python packages. Be aware that there are other options out there, but pip is the most prevalent.

Answer 2

When you installed python, it has pip installed by default. pip comes with python. You can check pip version by

pip --version

OR pip3 --version

Now, in order to install any other package, you can install by

pip install <package-name>

It would be better if you install a virtual environment, and install all other packages inside the virtual environment so that you can install packages according to your project requirements and with different versions.

To install virtual environment, do

pip install virtualenv

Once the virtual environment is installed, you can create your virtualenv according to your project requirement by:

virtualenv -p python3 venv

Here venv is your virtualenv name. To activate it,

source venv/bin/actiavte

Now, you can install all your required packages inside this virtualenv by pip3 install <package-name> . This will keep it separated from your system environment.